Beecham, Roger, Jason Dykes, Layik Hama, and Nik Lomax. 2021.
“On the Use of ‘Glyphmaps’ for Analysing the Scale and Temporal Spread of COVID-19 Reported Cases.” ISPRS International Journal of Geo-Information 10 (4).
https://doi.org/10.3390/ijgi10040213.